CN110962580B - Electromechanical coupling transmission device and system and hybrid electric vehicle - Google Patents
Electromechanical coupling transmission device and system and hybrid electric vehicle Download PDFInfo
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- CN110962580B CN110962580B CN201911154877.5A CN201911154877A CN110962580B CN 110962580 B CN110962580 B CN 110962580B CN 201911154877 A CN201911154877 A CN 201911154877A CN 110962580 B CN110962580 B CN 110962580B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/383—One-way clutches or freewheel devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
- B60K2006/266—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators with two coaxial motors or generators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention provides an electromechanical coupling transmission device, a system and a hybrid electric vehicle, relating to the technical field of automobile power transmission devices, wherein the electromechanical coupling transmission device comprises: the double-planet row, the first motor, the second motor, the clutch, the first fixed shaft gear, the second fixed shaft gear, the first brake and the second brake can realize input power split and compound power split through opening or closing of the clutch, the first brake and the second brake, so that the hybrid electric vehicle can obtain higher efficiency when switching the hybrid mode.
Description
Technical Field
The invention relates to the technical field of automobile power transmission devices, in particular to an electromechanical coupling transmission device, an electromechanical coupling transmission system and a hybrid electric vehicle.
Background
The vehicle dynamic performance is the most important and basic performance of the vehicle, the vehicle dynamic performance depends on the reasonable matching degree of the engine and the transmission device to a great extent, if no transmission device reasonably matched with the engine does not exist, the performance of the transmission device cannot be fully exerted, and the transmission device reasonably matched with the engine not only can improve the vehicle performance, but also can reduce the fuel consumption of the engine, reduce the abrasion and prolong the service life of the engine.
However, the technical solution described in patent No. CN 101992679B can only achieve compound power splitting, so that the hybrid vehicle is prone to have a problem of low switching efficiency when switching in the hybrid mode.
Disclosure of Invention
Accordingly, the present invention is directed to an electromechanical coupling transmission device, a system and a hybrid vehicle to alleviate the above technical problems.
In a first aspect, an embodiment of the present invention provides an electromechanical coupling transmission device, where the electromechanical coupling transmission device includes: the double-planet-row clutch comprises a double-planet row, a first motor, a second motor, a first fixed-shaft gear set, a second fixed-shaft gear set, a clutch, a first brake and a second brake; the double planetary row comprises a first planetary row and a second planetary row, wherein the first planetary row comprises a first sun gear, a first planet carrier and a first gear ring; the second planet row comprises a second sun gear, a second planet carrier and a second gear ring; the first sun gear is connected with the third mechanical rotating shaft, the first planet carrier is connected with the first mechanical rotating shaft, and the first gear ring is connected with the fourth mechanical rotating shaft; the second sun gear is connected with the fifth mechanical rotating shaft, the second planet carrier is connected with the sixth mechanical rotating shaft, and the second gear ring is connected with the fourth mechanical rotating shaft; the first fixed shaft gear set comprises a first gear and a second gear; the second fixed shaft gear set comprises a third gear and a fourth gear; the first gear is positioned on the fourth mechanical rotating shaft, the second gear is positioned on the seventh mechanical rotating shaft, and the power is transmitted to the seventh mechanical rotating shaft from the first mechanical rotating shaft through the fourth mechanical rotating shaft; the third gear is positioned on the seventh mechanical rotating shaft, the fourth gear is positioned on the second mechanical rotating shaft, the power is transmitted to the second mechanical rotating shaft from the seventh mechanical rotating shaft, and the second mechanical rotating shaft is also connected with the differential mechanism; the first brake is connected with the first mechanical rotating shaft, the second brake is connected with the sixth mechanical rotating shaft, and the clutch is connected with the sixth mechanical rotating shaft and the third mechanical rotating shaft; the first motor is connected with the fifth mechanical rotating shaft, and the second motor is connected with the third mechanical rotating shaft.
With reference to the first aspect, embodiments of the present invention provide a first possible implementation manner of the first aspect, where the first planet row is a minus planet row, and the second planet row is a plus planet row.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the first brake is a one-way clutch.
In combination with the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the electromechanical coupling transmission device may further place a clutch between the first planetary row and the second planetary row, and connect the sixth mechanical rotating shaft and the third mechanical rotating shaft.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the electromechanical coupling transmission device can be expanded to be an engine longitudinal structure device.
With reference to the fourth possible implementation manner of the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the engine longitudinal structure device only includes the double planetary rows, the first motor, the second motor, the clutch, the first brake, and the second brake.
With reference to the fourth possible implementation manner of the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the double planetary row, the first motor and the second motor in the longitudinal engine structure device are coaxially arranged.
With reference to the first aspect, embodiments of the present invention provide a seventh possible implementation manner of the first aspect, wherein the electromechanical coupling transmission device includes at least the following modes: the system comprises a pure electric one-gear mode, a pure electric two-gear mode, a low-speed hybrid mode, a fixed speed ratio mode and a high-speed hybrid mode.
In a second aspect, the embodiment of the present invention further provides an electromechanical coupling transmission system, wherein the electromechanical coupling transmission system is configured with the electromechanical coupling transmission device.
In a third aspect, the embodiment of the invention further provides a hybrid electric vehicle, wherein the hybrid electric vehicle is provided with the electromechanical coupling transmission system.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides an electromechanical coupling transmission device, an electromechanical coupling transmission system and a hybrid electric vehicle, wherein the electromechanical coupling transmission device comprises: the double-planet row, the first motor, the second motor, the clutch, the first fixed shaft gear, the second fixed shaft gear, the first brake and the second brake can realize input power split and compound power split through opening or closing of the clutch, the first brake and the second brake, so that the hybrid electric vehicle can obtain higher efficiency when switching the hybrid mode.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an electromechanical coupling transmission device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another electromechanical coupling transmission device provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another electromechanical coupling transmission device provided in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an electromechanical coupling transmission system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hybrid electric vehicle according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The hybrid electric vehicle combines an electric drive unit and an auxiliary power unit on one vehicle, has the advantage of low emission of the electric vehicle, develops the advantages of high specific energy and specific power of petroleum fuel, obviously improves the emission and fuel economy of the traditional internal combustion engine vehicle, increases the driving range of the electric vehicle, and has the role of starting and starting in the process of converting the internal combustion engine vehicle into the electric vehicle.
With the stricter and stricter environmental protection measures in various countries in the world, hybrid vehicles have become a key point in automobile research and development due to their characteristics of energy saving, low emission, and the like, and have already begun to be commercialized. However, because the hybrid electric vehicle adopts 2 power sources as the power device, the vehicle driving performance is required to meet the requirement of the vehicle, and the vehicle driving performance depends on the reasonable matching degree of the engine and the transmission device to a great extent, and the technical scheme described in patent No. CN 101992679B can only realize the compound power split, so that the hybrid electric vehicle is prone to have a problem of low switching efficiency when switching in the hybrid mode. Based on this, the electromechanical coupling transmission, the electromechanical coupling system and the hybrid electric vehicle provided by the embodiment of the invention can alleviate the technical problems.
For the understanding of the present embodiment, a detailed description of the electromechanical coupling transmission device disclosed in the present embodiment will be given first.
The first embodiment is as follows:
an embodiment of the present invention provides an electromechanical coupling transmission device, such as a schematic structural diagram of the electromechanical coupling transmission device shown in fig. 1, where the electromechanical coupling transmission device includes: the double-planet row, the first motor E1, the second motor E2, the first fixed-shaft gear set, the second fixed-shaft gear set, the clutch C, the first brake B1 and the second brake B2; the double planetary row comprises a first planetary row and a second planetary row, wherein the first planetary row comprises a first sun gear 8, a first planet carrier 9 and a first ring gear 10; the second planetary row includes a second sun gear 11, a second carrier 12, and a second ring gear 13; the first sun gear 8 is connected with the third mechanical rotating shaft 3, the first planet carrier 9 is connected with the first mechanical rotating shaft 1, and the first gear ring 10 is connected with the fourth mechanical rotating shaft 4; the second sun gear 11 is connected with the fifth mechanical rotating shaft 5, the second planet carrier 12 is connected with the sixth mechanical rotating shaft 6, and the second gear ring 13 is connected with the fourth mechanical rotating shaft 4; the first fixed shaft gear set comprises a first gear 14 and a second gear 15; the second fixed axis gear set includes a third gear 16 and a fourth gear 17; the first gear 14 is positioned on the fourth mechanical rotating shaft 4, the second gear 15 is positioned on the seventh mechanical rotating shaft 7, and power is transmitted from the first mechanical rotating shaft to the seventh mechanical rotating shaft through the fourth mechanical rotating shaft; the third gear 16 is positioned on the seventh mechanical rotating shaft 7, the fourth gear 17 is positioned on the second mechanical rotating shaft 2, and power is transmitted to the second mechanical rotating shaft from the seventh mechanical rotating shaft; the first brake B1 is connected with the first mechanical rotating shaft 1, the second brake B2 is connected with the sixth mechanical rotating shaft 6, and the clutch C is connected with the sixth mechanical rotating shaft 6 and the third mechanical rotating shaft 3; the first motor E1 is connected to the fifth mechanical rotating shaft 5, and the second motor E2 is connected to the third mechanical rotating shaft 3.
In a specific implementation, as shown in fig. 1, the first mechanical rotating shaft is further connected to a crankshaft of the engine for transmitting power to the above-mentioned electromechanical coupling transmission device through the first mechanical rotating shaft, and the second mechanical rotating shaft is further connected to a differential D for transmitting power to the wheels of the vehicle through the differential D to drive the vehicle to run smoothly.
Specifically, in the present embodiment, by closing the clutch, the first brake, and the second brake, the electro-mechanical coupling transmission can achieve at least the following modes: the system comprises a pure electric one-gear mode, a pure electric two-gear mode, a low-speed hybrid mode, a fixed speed ratio mode, a high-speed hybrid mode, an engine starting mode, a parking power generation mode and a braking energy recovery mode.
In practical use, (1) the pure electric first gear mode: the clutch C is engaged, the first brake B1 is applied, and the second brake B2 is open. When the engine does not run, the first electric machine E1 drives the vehicle to run alone or the first electric machine E1 and the second electric machine E2 drive the vehicle to run in a double-motor combined mode.
In a specific implementation, when the first electric machine E1 is driven alone, the torque is transmitted to the differential D through the second sun gear 11, the second planet carrier 12, the second ring gear 13, the first fixed-axis gear set and the second fixed-axis gear set of the second planet row, so as to drive the vehicle to run. When the first electric machine E1 and the second electric machine E2 are driven jointly, the torques of the first electric machine E1 and the second electric machine E2 are transmitted to the differential D by the first fixed-axis gear set and the second fixed-axis gear set through the fourth mechanical rotating shaft 4 by the second planetary row and the first planetary row respectively, and the vehicle is driven to run. Reverse gear can be realized through reverse rotation of the two motors under the pure electric first gear mode.
(2) Pure electric two-gear mode: the clutch C is open, the second brake B2 is engaged, and the first brake B1 is engaged. When the engine does not run, the first electric machine E1 drives the vehicle to run alone or the first electric machine E1 and the second electric machine E2 drive the vehicle to run in a double-motor combined mode.
Specifically, when the first electric machine E1 and the second electric machine E2 are driven jointly, the torques of the first electric machine E1 and the second electric machine E2 are transmitted to the differential D by the first fixed-axis gear set and the second fixed-axis gear set through the fourth mechanical rotating shaft 4 by the second planetary gear set and the first planetary gear set respectively, so as to drive the vehicle to run. When the first electric machine E1 is driven alone, the torque is transmitted to the differential D through the second sun gear 11, the second planet carrier 12, the second ring gear 13, the first fixed-axis gear set and the second fixed-axis gear set of the second planet row, and the vehicle is driven to run. Reverse gear can be realized through the reverse rotation of the two motors under the pure electric two-gear mode.
(3) Low-speed hybrid mode: the clutch C is open, the first brake B1 is open, and the second brake B2 is engaged. The first motor E1 outputs power to drive the vehicle to run, and the driving power is transmitted to the differential D by the second sun gear 11, the second planet carrier 12, the second ring gear 13, the first dead axle gear set and the second dead axle gear set of the second planet row, and finally transmitted to the wheel end of the automobile. The output power of the engine is divided in the first planet row, one part of the output power is transmitted to the wheel end to drive the vehicle to run, the other part of the output power is transmitted to the second motor E2 to drive the second motor E2 to generate electricity, and the input power division is realized. In the low-speed hybrid mode, the second electric machine E2 can achieve stepless speed regulation of the engine, that is, the low-speed hybrid mode is an ECVT (Electronic Continuously Variable Transmission) mode.
(4) Fixed ratio mode: the clutch C is engaged, the first brake B1 is open, and the second brake B2 is engaged. At this time, the speed ratio of the first mechanical rotating shaft 1 connected with the engine and the differential D is fixed. The second electric machine E2 has a rotation speed of 0 and neither outputs power nor generates electricity. The engine output power can be used for driving the vehicle to run, or can be used for driving the vehicle to run partially and driving the first motor E1 to generate power partially. The first electric machine E1 can also drive the vehicle jointly with the engine. The speed ratio of the first mechanical rotating shaft 1 and the fourth mechanical rotating shaft 4 in the fixed speed ratio mode is smaller than 1.
(5) High-speed mixing mode: the clutch C is engaged, the first brake B1 is open, and the second brake B2 is open. At the moment, the engine, the first electric machine E1 and the second electric machine E2 can realize four-shaft compound power splitting. The engine output power partially drives the vehicle to run and partially generates electricity through the second motor E2. The first electric machine E1 outputs power to drive the vehicle to run. In this mode, the engine, the first electric machine E1, and the second electric machine E2 may be combined to output power to drive the vehicle to run, if the battery pack output and the motor controller power permit. At this time, the engine speed can be continuously and steplessly adjusted by the first electric machine E1 or the second electric machine E2, also in ECVT mode.
(6) The engine starting mode is as follows: the second electric machine E2 in this embodiment can directly output torque to start the engine. The torque of the second electric machine E2 can be output through the first sun gear 8 and the first carrier 9 of the first planetary row, which drives the engine to start.
(7) Parking power generation mode: when the automobile is in a parking state, the seventh mechanical rotating shaft 7 or the fourth mechanical rotating shaft 4 of the structure is locked through the parking locking mechanism, and the second brake B2 and the first brake B1 are opened. The engine output power is transmitted to the second electric machine E2 through the first planetary row to generate electricity and used for charging the battery pack. If the clutch C is engaged, part of the engine output power may continue to be transferred through the second planetary gear train to the first electric machine E1, i.e., the first electric machine E1 and the second electric machine E2 may generate electricity simultaneously and be used for charging the battery pack.
(8) A braking energy recovery mode: when the vehicle goes downhill or brakes, the reduced kinetic energy is transmitted to the first electric machine E1 through the second planet row, and the first electric machine E1 outputs braking torque, generates electricity and charges the battery pack; the second electric machine E2 may also output braking torque in conjunction with the first electric machine E1 to generate electricity and charge the battery pack if the clutch C is engaged.
The embodiment of the invention provides an electromechanical coupling transmission device, which comprises: the double-planet row, the first motor, the second motor, the clutch, the first fixed shaft gear, the second fixed shaft gear, the first brake and the second brake can realize input power split and compound power split through opening or closing of the clutch, the first brake and the second brake, so that the hybrid electric vehicle can obtain higher efficiency when switching the hybrid mode.
Preferably, the first planetary row is a minus planetary row, the second planetary row is a plus planetary row, and the first brake is a one-way clutch.
When the brake is used, the second brake can be a wet multi-plate brake, and the clutch can be a wet multi-plate clutch; in this embodiment, the structural forms of the first brake, the second brake and the clutch may be selected according to actual needs, and therefore, the structural forms of the first brake, the second brake and the clutch are not limited.
In particular, in order to make the structure of the electromechanical coupling transmission device compact, the position of the clutch may be adjusted, and for easy understanding, fig. 2 shows a schematic structural view of another electromechanical coupling transmission device, and as shown in fig. 2, the clutch may be disposed between the first planetary row and the second planetary row to connect the sixth mechanical rotating shaft and the third mechanical rotating shaft, and the connection manner between the other components is the same as the connection manner between the components shown in fig. 1.
In a specific implementation, as long as structural connection modes among the members of the planetary row, the double motors and the engine are followed in the embodiment, the operation principle of the electromechanical coupling transmission device is the same, preferably, the electromechanical coupling transmission device can be expanded to an engine longitudinal structure device, the engine longitudinal structure device only comprises the double planetary row, the first motor, the second motor, the clutch, the first brake and the second brake, and the double planetary row, the first motor and the second motor are coaxially arranged.
Specifically, fig. 3 shows a schematic structural diagram of another electromechanical coupling transmission device, as shown in fig. 3, a first sun gear 8 is connected with a third mechanical rotating shaft 3, a first planet carrier 9 is connected with a first mechanical rotating shaft 1, and a first gear ring 10 is connected with a fourth mechanical rotating shaft 4; the second sun gear 11 is connected with the fifth mechanical rotating shaft 5, the second planet carrier 12 is connected with the sixth mechanical rotating shaft 6, and the second gear ring 13 is connected with the fourth mechanical rotating shaft 4; the first brake B1 is connected with the first mechanical rotating shaft 1, the second brake B2 is connected with the sixth mechanical rotating shaft 6, and the clutch C is connected with the sixth mechanical rotating shaft 6 and the third mechanical rotating shaft 3; the first motor E1 is connected to the fifth mechanical rotating shaft 5, and the second motor E2 is connected to the third mechanical rotating shaft 3.
In summary, compared with the device described in patent No. CN 101992679B, which can only achieve compound power splitting, the electromechanical coupling transmission device provided in this embodiment can achieve both input power splitting and compound power splitting through opening or closing the clutch, the first brake, and the second brake, that is, two hybrid ECVT modes are provided, and higher efficiency can be obtained through switching between the two hybrid modes.
Further, with the general Voltec (schofland) 2 generation structural scheme contrast that only has a pure electric gear, there are two pure electric gears in the electromechanical coupling transmission that this embodiment provided, promptly, pure electric one keeps off the mode and pure electric two keep off the mode, wherein, the less velocity ratio can reduce the peak value rotational speed of first motor or increase the highest speed under the vehicle pure electric goes in the pure electric two mode. In addition, two motors are arranged on the same side of the double-planet row, so that the device is more compact in structure and convenient to install and use.
Example two:
on the basis of the above embodiments, the present embodiment further provides an electromechanical coupling transmission system, such as the structural schematic diagram of the electromechanical coupling transmission system shown in fig. 4, and as shown in fig. 4, the electromechanical coupling transmission system 400 is configured with the electromechanical coupling transmission device 401.
The electromechanical coupling transmission system provided by the embodiment of the invention has the same technical characteristics as the electromechanical coupling transmission device provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
Further, the present embodiment also provides a hybrid vehicle, such as the structural schematic diagram of a hybrid vehicle shown in fig. 5, and as shown in fig. 5, the hybrid vehicle 500 is configured with the electromechanical coupling transmission system 400.
It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system and the hybrid electric vehicle described above may refer to the corresponding processes in the foregoing device embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An electro-mechanically coupled transmission, the electro-mechanically coupled transmission comprising: the double-planet-row clutch comprises a double-planet row, a first motor, a second motor, a first fixed-shaft gear set, a second fixed-shaft gear set, a clutch, a first brake and a second brake;
the double planetary row comprises a first planetary row and a second planetary row, wherein the first planetary row comprises a first sun gear, a first planet carrier and a first ring gear; the second planet row comprises a second sun gear, a second planet carrier and a second gear ring;
the first sun gear is connected with a third mechanical rotating shaft, the first planet carrier is connected with the first mechanical rotating shaft, and the first gear ring is connected with a fourth mechanical rotating shaft; the second sun gear is connected with a fifth mechanical rotating shaft, the second planet carrier is connected with a sixth mechanical rotating shaft, and the second gear ring is connected with the fourth mechanical rotating shaft;
the first fixed shaft gear set comprises a first gear and a second gear; the second fixed-axis gear set comprises a third gear and a fourth gear; the first gear is positioned on the fourth mechanical rotating shaft, the second gear is positioned on a seventh mechanical rotating shaft, and power is transmitted to the seventh mechanical rotating shaft from the first mechanical rotating shaft through the fourth mechanical rotating shaft; the third gear is positioned on the seventh mechanical rotating shaft, the fourth gear is positioned on the second mechanical rotating shaft, power is transmitted to the second mechanical rotating shaft from the seventh mechanical rotating shaft, and the second mechanical rotating shaft is also connected with the differential mechanism;
the first brake is connected with the first mechanical rotating shaft, the second brake is connected with the sixth mechanical rotating shaft, and the clutch is connected with the sixth mechanical rotating shaft and the third mechanical rotating shaft;
the first motor is connected with the fifth mechanical rotating shaft, and the second motor is connected with the third mechanical rotating shaft;
the first planet row is a negative planet row, and the second planet row is a positive planet row;
the electro-mechanically coupled transmission includes at least the following modes: the system comprises a pure electric first gear mode, a pure electric second gear mode, a low-speed hybrid mode, a fixed speed ratio mode, a high-speed hybrid mode, an engine starting mode, a parking power generation mode and a braking energy recovery mode;
when the electromechanical coupling transmission device is in an electric-only first-gear mode, the clutch is engaged, the first brake is engaged for braking, the second brake is opened, and the first motor is used for driving alone or the first motor and the second motor are used for driving in a combined mode;
when the electromechanical coupling transmission device is in an electric-only second-gear mode, the clutch is opened, the second brake is engaged, the first brake is engaged and is driven by the first motor alone or the first motor and the second motor are driven in a double-motor combined mode;
when the electromechanical coupling transmission device is in a low-speed hybrid mode, the clutch is opened, the first brake is opened, the second brake is engaged, and the first motor outputs power to drive.
2. The electro-mechanically coupled transmission of claim 1, wherein the first brake is a one-way clutch.
3. The electro-mechanical coupling transmission of claim 1, wherein the electro-mechanical coupling transmission further places the clutch between the first planetary row and the second planetary row, connecting the sixth mechanical shaft with the third mechanical shaft.
4. The electro-mechanical coupling transmission of claim 1, wherein the electro-mechanical coupling transmission is expandable as an engine longitudinal structure device.
5. The electro-mechanically coupled transmission of claim 4, wherein said engine longitudinal arrangement includes only said double planetary row, said first electric machine, said second electric machine, said clutch, said first brake, and said second brake.
6. An electro-mechanically coupled transmission, according to claim 5, wherein said double planetary row, said first electrical machine and said second electrical machine in said engine longitudinal arrangement are coaxially arranged.
7. An electro-mechanical coupling transmission system, characterized in that the electro-mechanical coupling transmission system is provided with the electro-mechanical coupling transmission device of any one of claims 1 to 6.
8. A hybrid vehicle, characterized in that it is equipped with an electro-mechanically coupled transmission system according to claim 7.
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